diff --git a/admin/environment.xml b/admin/environment.xml
index 5f8faf5c043..019509bf6fb 100644
--- a/admin/environment.xml
+++ b/admin/environment.xml
@@ -34,4 +34,30 @@
       </PHP_EXTENSION>
     </PHP_EXTENSIONS>
   </MOODLE>
+  <MOODLE version="1.7">
+    <DATABASE level="required">
+      <VENDOR name="mysql" version="4.1.16">
+        <FEEDBACK>
+          <ON_ERROR message="mysql416required" />
+        </FEEDBACK>
+        <BYPASS function="bypass_mysql416_reqs" message="mysql416bypassed" />
+      </VENDOR>
+      <VENDOR name="postgres" version="7.4" />
+      <VENDOR name="mssql" version="8.0" />
+      <VENDOR name="oracle" version="9.0" />
+    </DATABASE>
+    <PHP version="4.3.0" level="required" />
+    <PHP_EXTENSIONS>
+      <PHP_EXTENSION name="iconv" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="iconvrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="mbstring" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="mbstringrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+    </PHP_EXTENSIONS>
+  </MOODLE>
 </COMPATIBILITY_MATRIX>